Zobrazeno 1 - 10
of 28
pro vyhledávání: '"D. L. Ergun"'
Publikováno v:
Medical Physics. 22:1581-1593
Measurements were made of the MTF(f), NPS(f), and DQE(f) of four generations of computed radiography (CR) imaging plates and three generations of CR image readers. The MTF generally showed only a minor change between generations of plates and readers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d58e92462c4a9cfe45c5289e62d1f92
https://doi.org/10.1118/1.597627
https://doi.org/10.1118/1.597627
Publikováno v:
Medical Physics. 21:175-184
Single kernel scatter correction algorithms are based on the model that the scatter field can be predicted by convolution of the primary intensity (Iprim) with a spatially invariant scatter point-spread function (PSF). Practical limitations (Iprim un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f555c1de23659e9a1520a0d9bad8e2e8
https://doi.org/10.1118/1.597297
https://doi.org/10.1118/1.597297
Autor:
F. Kelcz, W. K. Sze, D.E. Brown, David P. Naidich, Charles A. Mistretta, R.T. Bystrianyk, D. L. Ergun
Publikováno v:
Radiology. 174:243-249
Recent reports have emphasized the potential for dual-energy computed radiographic applications. An improved method for single-exposure material-selective imaging with a photostimulable phosphor computed radiography system was investigated. The essen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d2b55741fe2137033f607e5ccd061b8
https://doi.org/10.1148/radiology.174.1.2294555
https://doi.org/10.1148/radiology.174.1.2294555
Autor:
R, Fahrig, K, Butts, J A, Rowlands, R, Saunders, J, Stanton, G M, Stevens, B L, Daniel, Z, Wen, D L, Ergun, N J, Pelc
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 13(2)
A system enabling both x-ray fluoroscopy and MRI in a single exam, without requiring patient repositioning, would be a powerful tool for image-guided interventions. We studied the technical issues related to acquisition of x-ray images inside an open
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a312a01a8a0c941064de001e4bc4df81
https://pubmed.ncbi.nlm.nih.gov/11169837
https://pubmed.ncbi.nlm.nih.gov/11169837
Autor:
James T. Dobbins, Raymond J. Althof, Erwin B. Bellers, Yi Wang, Marco G.J. Wind, Walter W. Peppler, F. E. Zink, Frederik Jan De Bruijn, David G. Kruger, D. L. Ergun, F. Kelcz
Publikováno v:
SPIE Proceedings.
We have reported on a single-exposure dual-energy system based on computed radiography (CR) technology. In a clinical study conducted over a two year period, the dual-energy system proved to be highly successful in improving the detection (p=0.0005)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c375546011b7e857c1e6ee65f8d19776
https://doi.org/10.1117/12.175102
https://doi.org/10.1117/12.175102
We evaluated a single-exposure, phosphor-plate, dual-energy imaging device that produces, in addition to conventional chest radiographs, both tissue- and bone-selective images. Our purpose was to determine whether dual-energy radiography was more acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8b907c31fcb3328dced7160843622dd
Publikováno v:
Investigative Radiology. 25:1373
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c23f76480cf08255560cd9db322e2f68
https://doi.org/10.1097/00004424-199012000-00129
https://doi.org/10.1097/00004424-199012000-00129
Publikováno v:
Medical Physics. 8:629-639
Theoretical and experimental techniques have been used to study optimal x-ray for screen-film mammography. A simple model of mammographic imaging predicts optimum x-ray energies which are significantly higher than the K-characteristic energies of Mo.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::756bfa261dbdd959bbcd214ef9059046
https://doi.org/10.1118/1.595021
https://doi.org/10.1118/1.595021
Autor:
P D Myerowitz, D. L. Ergun, William C. Zarnstorff, M. S. Van Lysel, Andrew B. Crummy, Charles A. Mistretta, C. G. Shaw
Publikováno v:
Radiology. 142:209-213
The logarithmic amplification of video signals and the availability of data in digital form make digital subtraction videoangiography a suitable tool for videodensitometric estimation of physiological quantities. A system for this purpose was impleme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adec6878faf4f8968bf6463592aff9e3
https://doi.org/10.1148/radiology.142.1.7031761
https://doi.org/10.1148/radiology.142.1.7031761
Autor:
William C. Zarnstorff, J F Sackett, Charles A. Mistretta, D. L. Ergun, M. S. Van Lysel, C. G. Shaw, William D. Turnipseed, D. Myerowitz, Charles M. Strother, Andrew B. Crummy, Robert A. Kruger
Publikováno v:
IEEE Transactions on Nuclear Science. 27:1042-1046
During the past several years, we have developed dedicated digital algorithms for real time processing of X-ray transmission imaging data obtained from an image intensifier television fluoroscopy system. Three imaging modes called Mask Mode Fluorosco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9fc7fce2581820c2a11ef6bf9392177
https://doi.org/10.1109/tns.1980.4330975
https://doi.org/10.1109/tns.1980.4330975